Improvement in paint-mills



PATENT OFFICE.

WILLIAM R. AXE, OF ROCKTON, ILLINOIS.

IMPROVEMENT IN PAINT-MILLS.

Specification forming part of Letters Patent No. 116,652,1lated July 4, 1871.

To all whom fit may concer/n:

Beit known that I, W ILLIAM It. AXE, of Rockton, in the county of Winnebago and in the State of Illinois, have invented certain new and useful Improvements in Paint-Mills; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had tothe accompanying drawing and to the letters of reference marked thereon.

The nature -of my invention consists in constructing a paint-mill (more especially the one patented to me July 13, 1869) with a revolving center plate or grinding-disk between a lower grinding-disk and the lower or grinding-surface ofthe hopper, thus obtaining, in eifect, two millsv in one; also, byv means of the relation of the shafts on which the two grinding-disks are secured, procuring a double speed.by the reverse motion of the two said disks, all of which will more fully hereinafter appear.

To enable others skilled in the art to make and use my invention, I will now proceed to more fully describe its construction and operation.

In the drawing, Figure l is a transverse vertical section through the center of my improved mill, fully showing the grinding-disks and their shafts, but not showing one of the three legs of the framing on which the apparatus is supported; and Fig. 2 is a perspective view of the revolving center plate or grindiiigdisk.

A is the framing. I3 is the hopper, with flange l, whose under side is a corrugated or grindingsurface. C is the center plate or disk, (see Fig. 2,) provided with. a cross-bm', c, having a square rec to receive the upper and square end of the shaft D, on which the plate U rests, and by which said' plate or disk C is revolved. The upper and vlower faces of center disks U are eut with screwfurrows or provided with other suitable grindin surface. The cross-bar e, besides supporting and securing the center disk C to the shaft I), also agitates and causes the paint to feed uniformly and rapidly to the grinding-surfaces above and below disk (l. E is the lower grinding-plate, having a ho'le through its center to permit ofthe passage of shaft I), and resting upon and secured by lugs e e to hollow shaft F. This plate E has a grinding-surface on its upper face and near its outer edges similar to plate C. The periphery of disk E below the grindingsurface is much wider than the saine portion of disk C, which is only ofthe width equal to the thickness of disk C. G is the driving-shaft, to receive power from the crank H or other desirable means when other than hand-power is used. OnV the inner end of the drivin g-shaft G is a bevel-gear wheel, I, driving the miter-wheel Il, which is secured by a set-screw, t, passing through its hub to hollow shaftF and the miter-wheel I2, which is seeiued by a set-screw, i', passing through its hub to shaft D. By loosening the set-screw 'i' the wheel I2 will be allowed to run without the shaft I), which may be further secured by passing a bolt through it, as indicated by dotted lines in Fig. l. In this position the center plate C will remain, stationary, and no paint will be ground between its upper face and the hopper, so that the work of only one mill will be done. If the set-screw i is unscrewed wheel I1 will be permitted to revolve without hollow shaft F, which, with the lower griiuling-disk E, would remain stationary. The lower end of shaft D has its bearing on the adjustable step-,lever K. Through means of the screw and nut L the lever K is raised or lowered, and by that means the spa-ces between the grin ding surfaces, and with them, of course, the degrec of iineness of the paint, are regulated.

The operation of the invention is sutlciently obvious without description other than that i11- cident to the illustra'ttion given above and clearly presented in the drawing.

Having thus fully described luy invention, what I claim as new, and desire to secure by Letters Patent, isp l.. rEhe center' plate C, in combination with the revolving plate E and stationary grinding-plate b, when constructed and operated substantially as and for the purposes set forth and described.

2. The shaft D, miter-wheel I2, and set-screw i', in combination with center plate C, when constructed and operating substantially in the manner and for the purposes specified.

3. The shaft D, initer-wheel I2, set-screw i', and center-plate C, in combination with hollow shaft F, miter-wheel Il, and set-screw 1'., when constructed and operating substantially in the manner and for the pinposes described.

In testimony that I claim the above-described certain new and useful improvements in paint mills I have hereunto signed my name this 11th day of April, 1871.

Vitnesses: VVILLIAIVI R. AXE.

J. BRITTAN, W. M. BRITTAN. 

